Developer tools avoid unnecessary setup and keep common snippets, tokens, and test data in your browser where possible.
Chain small tools together: decode, inspect, format, compare, and generate types from the same data.
Luck predicts what you like
Count days, hours, minutes, and seconds until an event.
Preview Markdown and export it as PDF with browser print
Generate URL-friendly slugs
Calculate proportional image and video sizes from width and height.
Convert Markdown to HTML
Generate strong random passwords with custom rules
Generate Java classes from JSON
Paste old and new article drafts to summarize added, removed, and updated content before republishing.
